What is a common consequence of applying excessive heat during hair styling?

Applying excessive heat during hair styling can result in hair damage or breakage. The reason for this is that hair is made up of a protein called keratin, which can be altered by high temperatures. When hair is exposed to excessive heat, the moisture within the hair can evaporate, leading to dryness and brittleness. This compromised state makes the hair more susceptible to damage, such as split ends and breakage.

In contrast, enhanced shine, hair strengthening, and improved texture are typically associated with healthy hair practices rather than the use of excessive heat. These outcomes are generally achieved through proper conditioning, appropriate hair care products, and techniques that avoid damaging the hair structure. Therefore, understanding the effects of heat on hair is critical for maintaining its health and appearance, making it clear why excessive heat leads to damage rather than improvement.